Polysaccharide-thickened aqueous acid cleaning compositions
US4855069A · kind A · utility
31Cited by
10References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 4, 1988 |
| Grant date | Aug 8, 1989 |
| Priority date | — |
| Expiry date | Aug 4, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC23G1/025
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Aqueous acid cleaning compositions well adapted, e.g., for the descaling of metallic face surfaces include (i) water, (ii) a carboxylic acid dissolved therein having a dissociation constant pK, at 25.degree. C., of at least 2, (iii) a stabilizing amount of at least one salt of an acid having a pK value of at least 2, and of a strong base, and (iv) a thickening amount of a polysaccharide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.